diff --git a/openhantek/src/hantekdso/hantekdsocontrol.cpp b/openhantek/src/hantekdso/hantekdsocontrol.cpp
index 70a560b..a315de6 100644
--- a/openhantek/src/hantekdso/hantekdsocontrol.cpp
+++ b/openhantek/src/hantekdso/hantekdsocontrol.cpp
@@ -1231,6 +1231,8 @@ void HantekDsoControl::run() {
     #else
     #define FALLTHROUGH
     #endif
+#else
+#define FALLTHROUGH
 #endif
             else {
                 FALLTHROUGH